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Questions and Answers
What does the INSERT INTO statement do?
What does the INSERT INTO statement do?
- Add new records to a table (correct)
- Modify existing data in a table
- Remove existing data from a table
- Create a new table
What happens if you don't specify values for all columns in an INSERT statement?
What happens if you don't specify values for all columns in an INSERT statement?
- The table will be dropped
- The INSERT statement will fail
- An error will be thrown
- NULL will be added for the unspecified columns (correct)
What does the UPDATE statement do?
What does the UPDATE statement do?
- Create a new table
- Modify existing data in a table (correct)
- Add new records to a table
- Remove existing data from a table
Which DML statement is used to remove existing data from a database?
Which DML statement is used to remove existing data from a database?
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What is the risk of using INSERT INTO without mentioning the columns?
What is the risk of using INSERT INTO without mentioning the columns?
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